LION – Localization and identification of moving noise sources

• Applicants: Professor Dr.-Ing. Martin Ochmann; Dr.-Ing. Henri Siller
• Subject Area: Acoustics
• Term: since 2019
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 422372636

The motivation for the DACH project LION was to pool the expertise of acoustic research groups in Germany, Austria, and Switzerland to develop advanced method for the localization and analysis of moving sources of sound, especially on trains and aircraft in flight. The scientific discipline of acoustic source localization has been very active for the last 25 years with a rapid development of advanced methods that have improved the spatial resolution and dynamic range compared to the traditional sum-and-delay beamforming methods. Today, a large variety of methods is available, however mostly restricted to stationary sources of sound. For moving sources of sound, the spectral content of the signal changes over time so that the efficient analysis methods in the frequency domain that exist for stationary sources cannot be applied. The partners in the LION project have worked on new approaches and more efficient ways of processing microphone array data for moving sources in the first three years of the project from 2020 to 2023 and plan to continue their cooperation for a second project phase from 2024 to 2026.

• DFG Programme: Research Grants
• International Connection: Austria, Switzerland
• Partner Organisation: Fonds zur Förderung der wissenschaftlichen Forschung (FWF); Schweizerischer Nationalfonds (SNF)
• Cooperation Partners: Professor Dr.-Ing. Holger Waubke; Dr. Jean Marc Wunderli